Do not render Delete button for internal queues

deps/rabbitmq_management/priv/www/js/main.js

@@ -1759,6 +1759,10 @@ function select_queue_type(queuetype) {
     update();
 }
 
+function is_internal(queue) {
+    return queue.internal;
+}
+
 function get_queue_type (queue) {    
     return queue.type;
 }

deps/rabbitmq_management/priv/www/js/tmpl/queue.ejs

@@ -395,6 +395,7 @@
 </div>
 <% } %>
 
+<% if (!is_internal(queue)) { %>
 <div class="section-hidden" id="delete">
   <h2>Delete</h2>
   <div class="hider">
@@ -406,6 +407,7 @@
     </form>
   </div>
 </div>
+<% } %>
 
 <% if (!is_stream(queue)) { %>
 <div class="section-hidden">

deps/rabbitmq_management/src/rabbit_mgmt_wm_queue.erl

@@ -128,11 +128,14 @@ queue_with_totals(ReqData) ->
 
 queue_with_totals(VHost, QName) ->
     Name = rabbit_misc:r(VHost, queue, QName),
+    %% this somehow shares fields with mgmt_format:queue :-/
     case rabbit_amqqueue:lookup(Name) of
-        {ok, Q}            -> QueueInfo = rabbit_amqqueue:info(Q,
+        {ok, Q}            -> QueueInfo0 = rabbit_amqqueue:info(Q,
                                     [name, durable, auto_delete, exclusive,
                                     owner_pid, arguments, type, state,
                                     policy, totals, online, type_specific]),
-                              rabbit_mgmt_format:queue_info(QueueInfo);
+                              QueueInfo1 = QueueInfo0 ++ [{internal, amqqueue:is_internal(Q)},
+                                                          {internal_owner, rabbit_mgmt_format:internal_owner(amqqueue:internal_owner(Q))}],
+                              rabbit_mgmt_format:queue_info(QueueInfo1);
         {error, not_found} -> not_found
     end.

deps/rabbitmq_management_agent/src/rabbit_mgmt_format.erl

@@ -10,7 +10,7 @@
 -export([format/2, ip/1, ipb/1, amqp_table/1, tuple/1]).
 -export([parameter/1, now_to_str/0, now_to_str/1, strip_pids/1]).
 -export([protocol/1, resource/1, queue/1, queue/2, queue_state/1, queue_info/1]).
--export([exchange/1, user/1, internal_user/1, binding/1, url/2]).
+-export([exchange/1, user/1, internal_user/1, binding/1, url/2, internal_owner/1]).
 -export([pack_binding_props/2, tokenise/1]).
 -export([to_amqp_table/1, listener/1, web_context/1, properties/1, basic_properties/1]).
 -export([record/2, to_basic_properties/1]).
@@ -401,10 +401,19 @@ queue(Q, Ctx) when ?is_amqqueue(Q) ->
      {exclusive, is_pid(ExclusiveOwner)},
      {owner_pid, ExclusiveOwner},
      {arguments, amqp_table(Arguments)},
-     {pid, Pid}
+     {pid, Pid},
+     {internal, amqqueue:is_internal(Q)},
+     {internal_owner, internal_owner(amqqueue:internal_owner(Q))}
      %% type specific stuff like, state, type, members etc is returned here
      | rabbit_queue_type:format(Q, Ctx)].
 
+internal_owner(undefined) ->
+    false;
+internal_owner(#resource{} = Owner) ->
+    [{name, Owner#resource.name},
+     {kind, Owner#resource.kind},
+     {vhost, Owner#resource.virtual_host}].
+
 queue_info(List) ->
     format(List, {fun format_exchange_and_queue/1, false}).